dra7xx: Add dra74_evm_defconfig using CONFIG_DM

Import various DT files for dra7-evm from Linux Kernel v4.2
Add config file for this board, enable DM and DM_GPIO

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
4 files changed